Annular ball-bearing.



w. H. STROM. ANNULAB BALL BEARING.

APPLICATION FILED4AUG. :5. 1916.

W, W Mu /Z m r h 2 W lessees.

WALTER STROM, OF OAK PARK, ILLINOIS.

ANNULAR BALDBEARING.

torily both radial and axial loads. It is the object of the invention to provide a bearing of this type which may be easily assei'nbled, and in which in the assembly of the parts they are fitted. to one another with a minimum amount of labor, and when completely assembled form a unitary structure.

-. The inventioirwill be more fully understood from the following detailed description of one embodiment thereof taken in connection with the accoi'npanying drawings, in whieh- Figure 1 is a side elevation of a double row bearing constructed in accordance with the invention; Fig. 2 is a sectionthrough the center of the bearing in its own plane; Fig. 3 is an enlarged broken section taken on an axial plane as indicated by the line -%*3 of Fig. 1; Fig. iis a similar section illustrating the manner of assembly of the hearing; Fig. 5 is a similar section showing the last step of the assei'nbling process, and Fig. (l is a detail view ot the retainer.

Referringmore particularly to the drawings, the nluneral 10 designates the inner race-member which is of the common annular form and is provided in its external surface with a wide and relatively shallow race-way groove 11, the curved n'iargins 1:2

of which constitutethc actual race-way sur face. For cooperating with this single in ner race-member there is provided a pair of conjugate outer raa e-members designated 13 and H. each in tlic 'lo1-ni of an annulus or ring provided with a curved inner face designated 15, which, in the assembled position of the parts. as indicated in Figs. I-l to 5, faces an inner race-way 12. The outer raccmember H- is counlcrlmred as shown at 16. thc'countcrbm'c extending inwardly a. proper distance to permit the introduction of a ball as will later appear. The opposed Specification of Letters Patent.

atented Dec. if, on 8.

Application filed August 15, 1916. Serial No. 114,966.

faces of the outer race-members 13, 14, are eachprovided with an oblique surface desi natcd l7. and each of the'race-ways is furthermore rabbeted out at its outer corner as illustrated at 18. The bearing balls, designated 19 and 20 for the balls in the two l'OWs respectively, are secured in proper spaced relation by one or more retainers, such as the retainers 21 of which two are illustrated in the drawing, one being operatively related to each row of balls. As will later appear the retainer construction is not pertinent to the presentinvention save in one particular.

To assemble the parts heretofore described. the row of balls 1!) will first be placed in position upon the inner race-men]- her 10. This may be done either before or after the balls 1!) are secured in their retaincr but it should be noted that if the balls are assembled in the retainer before being introduced into the race-way, it is necessary that the retainer be of such con struction as to permitthe balls to move radially outward in their pockets a distance equal to the depth of the race-way or groove 11. Since the retainer for the balls 20 must mcessarily be of this construction as will .latcr appear. I prefer to construct the two retainers in the same way for the sake of uniformity. The row of balls Ill and the rc tainer 21 having been assembled upon the inner race-member 10 in the position shown in F g. 4., the outer raiemembc'r l3 is'then end of the bearing and moved axially until it abut against the race-mcmlmr 13 as shown in Fig. 4. The right -haud row of balls 20 having been previously assembled in the retainer 21 is now slipped over the right-hand end of the inner race-member 10. In such movement each of the balls 20 will be forced outwardly in its pochct in the. re tainer as indicated by the dotted circles 20' in Figs. 4 and (3, the countcrborc 16 of the race-memlmr 14 being sutiicicntly deep and of sutlicient diameter to permit thc' alls to occupy the successive positions shown in dolted lines in Fig. 4.

To complete the assembly of the bearing the outer race-members 13, 14, are moved away from one another and a split locking ring 22 of appropriate wedge-shaped cross-' section is snapped into place in the groove formed by the opposed oblique faces 17 of the two outer race-members. A. retaining sleeve 23'formed of a malleable or ductile metal is now slipped over. the outer cylindrical surfaces of the race-members 13 and 14, the bearing is placed in a chuck and a spinning tool pressed against the central portion of the sleeve 23 to crowd the metal of the latter radially inwardly into contact with the ring 22, which it should be noted is of'such size that its outer surface wall he below the cylindrical surfaces of the outer race-members. In this spinning operation In order that the outer surface of the bearing may be truly cylindrical, and primarily alsoto prevent any subsequent loosening of the parts by reason of the ring 22 expanding and forcing the metal of the sleeve back toward its original form. it is desirable to machine the outer surface of the sleeve 23 until the latter is truly cylindrical as is shown in Fig. 3. Either before or after this last machining operation. the outer edges of the sleeve may be spun down into the rabbeted corners 18 so that the finished bearing presents the appearance shown in Figs. 1, 2 and 3. I I

Asis quite clear from an'inspcction of the hearing, it is capable of carrying radial loads as well as thrusts from either direction, and while in its construction three separate lilCB-ll'lttlllbGIS are employed the finished bearing is a unitary device, all parts of which are locked in operative position. While I have shown and described in considerable detail one specific bearing construction embodying my invention together with the preferred method of assembling the same, it is to be understood that this showing and description illustrative only and for the purpose of making clear the nature and objects of my invention and that I do not regard the invention as limited to these details nor to any of them except in so far as such limitations are included within the terms of the'following claims, in which it is my intention to claim all novelty inherent in myinvcntion as broadly as is permissible in view of the prior art.

What I claim as new and desire to secure by Letters Patent is: I 1. A double-row annular bearing eompris mg an inner race-member having intits outer surface opposed inwardly facing race-way surfaces, a pair of outer race-members, each having a race-way surface facing outwardly and opposed to one'of the race-way surfaces of the inner race-member, two rows of roller bearings each row cooperating with one pair of the race-way surfaces and wedge-shaped means for locking the outer race-members in spaced elationship; whereby there is formed a nitary double-row bearing.

2. A double-row annular bearing comprising an inner race-member having opposed inwardly facing race-way surfaces formed on its outer face, a pair'of outer race-memhers each of which has an outwardly facing race-way surface arranged in operative rela tion with one of the surfaces of the inner race-member, a row of roller earings cooperating with each pair of race-way surfaces and a wedge-shapedlocking member,

lying between the oppos d and. faces of the outer race-members and 'holdingthe latter in spaced relationship.

3. A double-rowannularbeari hg compris ing an inner race member having opposed inwardly facing race-way surfaces formed on its outer face, a pairof outer race-members each of which has an outwardly facing race-way surface arranged in operative relation with one ofjthe surfaces of the inner race-mcmber, a row of roller bearings cooperating with each pair of race-way surfaces and an annular locking ring having a por- ,tion of wedge-shaped cross-section entering between the opposed end faces of the outer race-members and holding the latter in spaced relationship.

4. A double-row annular bearing comprising an inner race-member having continuous uninterrupted race.- way surfaces formed in its outer face and inwardly directed to oppose one another, apair of outer race-members each having a continuous uninterrupted race-way surface opposing and in operative relation to one of the surfaces of the inner memlx r, a row of spaced halls cot'iperating with each pair of race-way surfaces. a retainer member for one of said rows of balls formed to permit of limited outward radial movement of the individual halls. and wedge-shaped means for locking said outer race-members in spaced relationship.

A ('loublc-row annular. bearing comprising; an inner race-member having opposed inwardly facing race-way surfaces formed in its outer fatter-a pair/of outer race-members each having a race-way ,surface opposed to one of the inner race-way surfaces. a row of bearing ballsairranged between each pair ofrace-way surfaces,

and an endless ring surrounding said outer race-members and having the material thereof extending inwardly between the opposed end faces of the outer race-members to hold the. latter in spaced relationship.

(1. A double-row annular bearing comprising an inner race-member having opposed inwardly facing race-way surfaces formed in its outer face, a pair ofouter race-members each having a race-way surface opposed to one of the inner race-way surfaces. a row of bearing balls arranged between each pair of race-way surfaces, and an endless ring surrounding the outer racemcmbers and extending inwardly between the opposed end faces thereof "to hold the said members in spaced relationship. the outer surface of said ring being a true cylindrical surface. I. A double-row annular bearing comprising an inner race-inen'lber having pposcd inwardly facing race-way surfaces formed on its outer face, a pair of outer race-nuunbers each of which has an outwardly facing race-way surface arranged in operative relation with one of the. surfaces of the inner race-member, a row of roller bearings cooperating with each pair of raceway surfaces, a locking member lying between the opposed end faces of the outer race-inenilms to hold the same in spaced relationship, and an endless retaining ring surrounding the and engaging the said locking member.

5. A double-row annular bearing com-t prising an inner ran-e-member having 0; posed inwardly facing race-way surfaces formed on its outer face, a pair of outer race-mcmbers each of whichhas uncutwardly facing race-way surface arranged in operative relation with one of the surfaces of the inner race-member, a row of roller-bmu-ings cooperating with each pair of race-way surfaces, a locking ring of wedge-shaped cross-section lying between the opposed end faces of said outer racemembers and an endless retaining ring having the metal thereof pressed inwardly to engage the outer face of said locking ring.

5). A douhle row annular bearing compr ing an inner race-member having opposed inwardly facing race-way surfaces formed on its outer face. a pair of outer race-members each of which has an outwardly facing race-way surface arranged in operative relation with one of the surfaces of the inner racc membeiu a row of roller bearings cooperating with each pair of race-way sur faces, a split locking ring of wedge-shaped cross-section lying between the opposed end faces of said outer race-nuanbers and when in assembled position below the outer cylindrical ll!"f2l47(s thereof, and an endless retaining ring sleeved the outer surfaces of the said or ace-members and said outer race-members spaced relationship,

shaped cross-section lying between the opposed end faces of said outer race-members and when in assembled position below the outer c vlmdr1cal surfaces thereof, and an endless retaining ring sleeved over the outer surfaces of the said outer race-members and having the material thereof pressed inwardly to engage the outer surface of said locking ring. the outer surface of said retaining ring being trulv cylindrical.

11. A double-row annular bearing comprising an inner raceaneinber having opposed inwardly facing race-way surfaces formed on its outer face, a pair of outer racemembers each of which has an outwardly facing race-way surface arranged in operative relation with one of the surfaces of the inner race-member, means for holding said outer race-n'ieinbers in spaced relation, a row of roller bearings cooperating with each pair of race-way surfaces, and a locking member in the form of an endless ring sleeved upon the outer surfaces of said outer race-members and holding the same in the edges of said ring being pressed inwardly to embrace the outer end faces of the outer race-members.

1:2. An annular double-row bearing com-' prising an inner race-mendier having 0pposed inwardly facing race-member surfaces formed in its outer face, a pair of outer racemembers each having a. race-way surface opposed to one of said inner ]tl(f(r'2ly surfaces, a row of bearing halls lying between each pair of race-way surfaces, one of said outer race-members being coimterbored in its outer end face, and means for holding said outer race-nuanbers in spaced relationship.

1 A bearingcomprising concentric hearing members provided with opposed tracks forming race-ways, one of said bearing members consisting of'two opposed parts movable axially with respect to each other to open up one of the nice-ways. said parts hav- 'ing inclined opposing faces. a' spacing member engaged between said inclined faces to wedge the parts of said twopart member away from each othc' and rolling elements in the race-ways aforesaid.

ll. A hearing comprising concentric bearing members provided with opposed tracks forming race-ways, one of said bearing mom bers consisting of two opposed parts movable axially with respect to each other to open up one of the race-ways, and one of said parts having an inclined face opposed to an abutment face on the other part, a spacing member engaged between said inclined face and abutment face to hold the two parts wedged apart and rolling elements in the raceways aforesaid.

15. A hearing comprisin concentric bearing members provided Wit opposed tracks forming race-ways, one of said bearing members consisting of two opposed parts movable axially with respect to each other to ojpennp one of the race-Ways, and said parts havlng opposed abutment faces, a spacing member forming race-Ways, one of said bearing mem-- bers consisting of two opposed parts movable axially with respect to each other to open up one of the race-ways, said parts having inclined opposing faces, a spacing member having inclined faces engaged between the inclined faces of the two-part member to wedge said parts away from each other and rolllng elements in the race-ways aforesaid.

WALTER H. STROM. 

